Code Definition

U015C — Lost Communication With Automated Driving System Control Module A

System: Network Communication  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About U015C

U015C is a generic (obd-ii standard) network communication diagnostic trouble code. It belongs to the U-prefix family of codes, which covers inter-module network communication (CAN, LIN, FlexRay, or similar) faults.

Scanning & clearing: Network (U) codes report communication faults between modules. When diagnosing U-codes, checking the vehicle's CAN bus integrity, supply/ground at each module, and reading all modules for related faults is usually the first step.

Because U015C is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

Automated Driving System Control Module A coordinates advanced driver assistance and automated driving functions, processing inputs from cameras, radar, and other sensors and sharing data with other controllers over a high speed CAN or FlexRay network. DTC U015C is a generic network code set when a receiving module stops receiving valid communication messages from Automated Driving System Control Module A for a calibrated period while the ignition is on and the rest of the network is communicating. The fault usually means the module has gone offline due to loss of power or ground, a bus wiring...

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